I've just realized that the red and blue channels are reversed. The sample program aggpas_ptcgraph_output.pas has the star filled in with a red fade and a blue series of random lines while the original test.png file had a blue fade in the star with red random lines. Also, the image is flipped on the Y axis compared to the original example. The small green square is in the upper left corner of test.png, but it is in the lower left corner of aggpas_ptcgraph_output.pas
I've been able to duplicate the results of test.png by shifting the left 5 bits 11 positions to the right and the right 5 bits 11 positions to the left and flipping the Y axis, but I can only do that with putpixel and a nested loop, which is quite a bit slower than putimage. Any ideas how I can build the data correctly so putimage will work? James _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
